[chore]: clean up misspell configuration (open-telemetry#11925)

#### Description
Remove unused ignored words

Signed-off-by: Matthieu MOREL <[email protected]>

Author: mmorel-35

.golangci.yml

@@ -90,11 +90,6 @@ linters-settings:
     locale: US
     ignore-words:
       - cancelled
-      - metre
-      - meter
-      - metres
-      - kilometre
-      - kilometres
 
   perfsprint:
     # Optimizes even if it requires an int or uint type cast.